Operating device for milking-machines.



No, 851,136. PATENT-ED APR. 2.3, 1907.

B. & F. LJUNGSTRGM. OPERATING DEVICE FOR MILKING MACHINES.

APPLICATION FILED JAN. 24, 1907.

l C 2 SHEETS-BEBE? 1.

A TRPRNEMS. I

. 432/ INVE/VTQRS 34M; M 'O W @ZZk PATENTED APR. 23, 1907. B. & F.LJUNGSTRGM.

OPERATING DEVICE FOR MILKING MACHINES.

' APPLICATION FILED JAN. 24. 1907.

2 SHEETS-BHBET 2.

UNITED STATES PATENT OFFICE. BIRGER LJUNGSTROM'AND FREDRIK LJUNGSTROM,or STOCKHOLM,

SWEDEN, ASSIGNORS TO AKTIEBOLAGET SEPARATOR, or STOCK I HOLM, SWEDEN.

OPERATING DEVICE FOR MILKING-MACHINES.'

Specification of Letters Patent.

Patented April 23,1907.

Application filed January 24', 1907- Serial N- 353,931.

' To all whom, it may concern:

Be it known that we, BIRGER LJUNosTRoM and FREDRIK LJUNGSTRM, sub ectsof the vKing of Sweden, and residing at Fleminggaten 8, Stockholm,Sweden, have invented certain new and useful Improvements in OpcratingDevices for Milking-Machines; andwe The present invention relates to animprovement for operatmg milking machines of such .art, that are drivenfrom rods or wires,

having a reciprocating motion and the invention has for its objectadevice by means of which the said rods or'wires are given areciprocating motion. It is of the utmost importance, especially when aliquid is used for the operation of the milking organs of the machine,and when the motion is imparted to said liquid from a pump connectedwith the wire or rod, that the acceleration and retardat'ion of theliquid be a certain one, as in other cases loss of energy will occur onac count of the shocks of the liquid.

The present invention has for its object a device for operating the rodor wire in such a way that the motion of said wire or'rod,

i. e. its acceleration and retardation at a certain moment is intechnical respect the accurate one, in order that the milking machinesmaybe driven with the smallestpossible expense of energy.

According to the present invention the desired motion of the rod or wireis created by means of a cam which is rotated by hand ormotor and whichoperates a contacting arm or roller or such like device, which isconnectedwith the rod or wire in any suitable way, for instance by meansof ,a lever.

The invention is shown on the annexed drawings in several, embodiments.

Figures 1 and 2 in front and-side elevation, respectively oneconstructional form in two different elevations. Figs. 3, 4, 5 and 6 areof my invention.

, detail views of different constructional forms equivalent the wheel aor its shaft and against said cam c a roller d abuts. The roller '11 isjournaled in the projection x from the end of the levere whichlever'turns on a ivotf on the arm g, secured to the base w. lever e isconnected'with the wire it by projection y. This wire is connected withthe milking machines, notshown, and operates them. In order that theroller al may be held in. contact with the cam c, aspring '2', isarranged between the lever e and arm 2 secured to the frame of themachine. The spring may evidently; be replaced by its for instance aWeight.

In installations consisting of a few .machines only, it may be desiredthat the same person, who operates the wire, may also take care of themachines. In order to make this possible, levers It are arranged atdifferent points on the wire it and pivoted to thebar 1.

. By means of said lovers the wire may be ops,

erated so as to obtain a reci rocating motion.- The cam c will theninstea of operating the roller d, lever e and wire h be operated by theroller d on account of the friction produced by the spring i, said camwill then only have a regulating influence upon the motion of the wire,so that its acceleration and retardation will be the desired one. Theface of the cam c is formed so as to produce the desired re-;'

tardations and accelerations in the reciprocation of the wire h. l

In Fig. 3 the cam is formed by a cylindrical body [having a cam groovem-on its surface, wherein the roller d is located.

In Fig. 4 the cam c is provided with a flange n. on opposite sides ofwhich are respectivelythe rollersd and o, and in Fig. 5 t 1 e cam isprovided with two flanges n and 1),

he other end of the I tis a handle,"by which, if the cam c be notoperated by the crank as in Fig. 1, the rod 1' can be operated in itslength direction, whereby the cam'c determines the rythm of the motionof the rod 1, i. e. the cam 0 can by this handle be put in motion inthe-same wayas bymeans of the handle 70 in Fig. 1.

Having now fully described my invention,

what I claim and desire to protect by Letters rests.

3. In operating devices for milking inachines, in combination, a rod orwire adapted to have a reciprocating motion, a lever connected to saidwire, an arm connected to said -lever, a rotatable cam against whichsaid contact with said cam face.

arm rests.

4. In operating devices for milking ma-' chines, in combination, a rodor wire adapted to have a reciprocating motion, an arm to which saidwire is connected, a-rotatable cam having the desired cam face against.which said arm rests, and means tending to hold said arm in contact withsaid cam face.

5. In operating devices for milking maf chines, in combination, a rod orwire adapted to have a reciprocating motion, an arm to Which said who isconnected, a roller connected to said arm, a rotatable cam having thedesired cam face against which said roller rests, and means tending tohold said arm in 6. In operating devices for" milking machines, incombinat on, a rod or wire-adapted to have a reciprocating motion, alever connected to said wire, an arm connected to said lever, arotatable cam against which said arm rests, and means-tending to holdsaid arm in contact with said cam face.

7. In operating devices for milking machines, in combination, a rod orwire adapted to have a reciprocating motion, an arm to w'hich said. wireis-connected, a rotatable cam having the desired cam face against whichsaid arm rests, and h'andles "onnected to-said wire whereby the cam maybe driven by the movement of the wire.

8. In operating devices for milking machines, in combination, a rod orwire adapted to have a reciprocating motion, an arm to which said Wireis connected, a roller connected to said arm a' rotatable cam having thedesired cam face against. which said roller rests, .and handlesconnected to said wire whereby the cam may be driven by the movement ofthe wire.

9. in operating devices for milking machines, in combination, a rod orwire adapted to have a reciprocating motion, a lever connected tosaidwire, an arm connected to said lever, a rotatable cam against whichsaid arm rests, and handles connected to said wire whereby the cam maybe driven by themovement of the wire. 1

10. In operating devices for milking machines, in combination, a rod orwire adapted tov have a reciprocating motion, an arm to which said wireis connected, a rotatable cam having the desired cam face against whichsaid arm rests, means tendin to hold said arm in contact with said camace, and I handles connected to said wire whereby the cam may be drivenby the movement of the wire.

11 chines, in combination, a rod or wire adapted to have a reciprocatingmotion, an arm to which said wire is connected, a.'rol1er connected tosaid arm, a rotatable cam having the desired cam face against which saidroller rests, means tending to hold said arm in contact with said camface, and handles connected to said wire whereby the cam may be drivenby the movement of the wire.

12. In operating devices for milking-machines, in combination, a rod orwire'ad apted to have-a reciprocating motion,a lever connected to saidwire, an arm connected to said lever, a rotatable cam against which saidarm rests, means tending to hold said arm in contact with said cam face,and handles connected to said wire whereby the cam may be driven by themovement of the wire.

In testimony of which invention, we have hereunto set our hands, atStockholm, on this 9th day of January, 1907.

QBIRGER LJUNGST-ROM. FREDRIK LJUNGSTROM.

Witnesses:

HJALIMYAR ZETTERsrRoM. HARRY AL-BIBEE.

In operating devices for milking ma-"

